Improvement in self-feeding plugging-tools for dentists



UNITED STATES PATENT OFFICE MAXIMILIAN BURCHARDT,OF BERLIN, PRUSSIA.

IMPROVEMENT IN SELF-FEEDING PLUGGING-TOOLS FOR DENTISTS.

Specification forming part of Letters Patent No. 50,428, dated October10, 1865.

To all whom 'it may concern.-

Beit known that I, MAXIMILIAN BURcH- ARDLM. D., ofBerlin, in the Kingdomot'Prussia, have invented a new and Improved Dentists Plugging-Tool; andI do hereby declare that the following is a full, clear, and exactdescription of the same, which will enable others skilled in the art tofully understand and use the same, reference bein g had to theaccompanying drawings, forming a part ot' this specitication, in which-Figure l represents a side elevation ot' this invention. g Fig. 2 is alongitudinal central section of the same. Fig. 3 is a transversesection, and Fig. 4 an end view, of the same on an enlarged scale. Figs.5 and 6 are detached inside views of the two halves.

Similar letters of reference in all the igures represent correspondingparts.

This invention relates to a dentists plugging-tool which may be calledself-feeding, the strip of gold or other material used in plugging beingpassed through a cavity extending throughout the entire length of thetool and emanating at its thin end in close proximity to the projectionor tongue which serves for the purpose of pressing the plugging materialinto the cavity of the tooth to be plugged in such a manner that, by theact of pressing the end of the material into the tooth, the strip ismade to feed itself, and the operation ot' plugginga tooth canbegperformed with one hand, and with the greatest convenience anddispatch.

Arepresents in y plu gging-tool ,which is made of metal or any othersuitable material, and provided with a cavity, a, extending from itsthick end clear down to its lip, where it passes out close over thetongue c, that serves for pressing the plugging material into the tooth.In order to be able to form this cavity in the tool, Imake it in twohalves, (such as shown in Figs. 5 and 6,) one halt' being provided atits thin end with a socket, el, to receive the end ot' the other halt',iu which a groove extends throughout its entire length, so that when thetwo halves are put together the desired cavity is formed. On the thickends of the two halves I place a cap, e, which is secured by ascrewthread, as shown, or which may be secured in any suitable manner. Ido not wish to restrict like a strip of paper, and after the same hasbeen passed through the cavity in the tool so that its ends extendssomewhat beyond the tongue c (see Fig. 1) the tool is ready foroperation. As the end of the strip is pressed into the cavity ot' thetooth it is wedged in sufciently tight to allow of drawing the tool backand to cause the strip ot' plugging material to be drawn or fed to thetongue just as it is Wanted. -The operation ot' plugging can thus beperformed with one hand, and the other hand can be used to hold open themouth of the patient, whereas with the ordinary tool the operator iscompelled to hold the plugging-tool in one and the plugging material inthe other hand, so that he has to depend upon the aid of an assistant tohold open the mouth ot' the patient.

MAXIMILIAN BURCHARDT.

Witnesses:

H. KREISMANN, D. E. YOEBER.

